參數(shù)資料
型號(hào)： UPD753017
廠商： NEC Corp.
元件分類： 4位微控制器
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù)： 10/80頁(yè)
文件大?。?/td> 569K
代理商： UPD753017
10
μ
PD753012, 753016, 753017
3.2 Pins Other than Port Pins (1/2)
Pin Name
Input/Output
Dual
Function
At Reset
I/O Circuit
TYPE
Note 1
Function Pin
TI0
Input
P13
Inputs external event pulses to the timer/event
counter.
Input
B -C
TI1
P12/INT2
TI2
PTO0
Output
P20
Timer/event counter output
Input
E-B
PTO1
P21
PTO2
P22/PCL
PCL
P22/PTO2
Clock output
BUZ
P23
Any frequency output (for buzzer output
or system clock trimming)
SCK
Input/Output
P01
Serial clock input/output
Input
F -A
SO/SB0
P02
Serial data output
Serial bus data input/output
F -B
SI/SB1
P03
Serial data input
Serial bus data input/output
M -C
INT4
Input
P00
Edge detection vectored interrupt input (both
rising edge and falling edge detection)
Input
B
INT0
Input
P10
Input
B -C
INT1
P11
INT2
Input
P12/TI1/TI2
Edge-detection-testable input Asynchronous
Input
B -C
KR0-KR3
Input
P60-P63
Falling edge detection testable input
Input
F -A
KR4-KR7
Input
P70-P73
Falling edge detection testable input
Input
F -A
S0-S23
Output
–
Segment signal output
Note 2
G-D
S24-S31
Output
BP0-BP7
Segment signal output
Note 2
H-A
COM0-COM3
Output
–
Common signal output
Note 2
G-B
V
LC0
-V
LC2
–
–
LCD drive power
On-chip split resistor is enable (mask option).
–
–
BIAS
Output
–
Output for external split resistor disconnect
Note 3
–
LCDCL
Note 4
Output
P30
Clock output for externally expanded driver
Input
E-B
SYNC
Note 4
Output
P31
Clock output for externally expanded driver sync
Input
E-B
X1
X2
Input
–
–
Crystal/ceramic connection pin for the main
system clock oscillator. When inputting the
external clock, input the external clock to pin
X1, and the reverse phase of the external clock
to pin X2.
–
–
Notes 1.
Circled characters indicate the Schmitt trigger input.
Each displays output selects the following V
LCX
as input source.
S0-S31: V
LC1
, COM0-COM2: V
LC2
, COM3: V
LC0
.
When a split resistor is contained .......
When no split resistor is contained ......
These pins are provided for future system expansion. At present, these pins are used only as pins
P30 and P31.
2.
3.
Low level
High impedance
4.
Edge detection vectored
interrupt input (detection
edge can be selected)
Noise eliminator can be
selected. (Only P10/INT0)
With noise eliminator
asynchronous selection
possible
Asynchronous
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